Finding the Fourth Proportional to 813,208.05, 1,122,233.70 and 450,637.98
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Solution
The fourth proportional to 813,208.05, 1,122,233.70 and 450,637.98 is: 621,884.06
Step by Step Solution
- Step 1: Write the proportion equation
813,208.05 : 1,122,233.70 = 450,637.98 : x - Step 2: Convert to fraction form
813,208.05/1,122,233.70 = 450,637.98/x - Step 3: Cross multiply
813,208.05x = 1,122,233.70 × 450,637.98 - Step 4: Simplify right side
813,208.05x = 505,721,127,655.93 - Step 5: Solve for x
x = 505,721,127,655.93/813,208.05 - Step 6: Final answer
x = 621,884.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.